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| Adapter set -V.A.G. 1594 C- |
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| Battery voltage at least 11.5 V |
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| Direct diesel injection control unit -J248-, correct |
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| The fuses in the battery fuse holder should work correctly. |
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| Extract the fuel temperature sender switch -G62- Components' fitting locations, → Anchor. |
Note! | On removing the connector “engine cold” is simulated. When ignition is connected, the corresponding preheating process will be carried out. |
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| Extract the connections from pre-heating elements. |
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| Connect multimeter to measure voltage between a pre-heating element contact and vehicle earth. |
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| Switch on ignition. It should indicate for 20 seconds approx. battery voltage |
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| If no voltage is present: |
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| Interrogate the fault memory of the new engine control unit and erase the fault memory if necessary -VAS 5051-, Vehicle self-diagnosis, → Chapter |
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